Claude Code for .NET Developers

Six hands-on parts that make Claude Code work the way a .NET repository works: a CLAUDE.md that earns its tokens, permissions for dotnet on Windows, hooks that format and test, a skill for EF Core migrations, a reviewer subagent, and a read-only MCP server in C#. Every file was used in real sessions on one sample solution, and each part reports what did not work as well as what did.

6 parts · ~38 min of reading, in order, nothing assumed.

Start with Part 1

🚀 Not installed yet? Start with Set Up Claude Code for .NET Like You Mean It 📥 AppointmentDesk, the sample solution every part works on (zip, 19 KB)📚 Anthropic's Claude Code documentation, the source for every feature claim in the series

Claude Code for .NET Developers · Part 1

CLAUDE.md for a .NET Solution: What to Write and What to Leave Out

What belongs in CLAUDE.md for a .NET repository. Eight real runs show which lines change what Claude Code does, and which change nothing. Oct 2, 2026 6 min read

Claude Code for .NET Developers · Part 2

Claude Code Permissions for .NET: Allow dotnet build, Never Touch Production

Allow dotnet build, ask before migrations, deny Production. A settings file for Windows, attacked with 47 commands, with what held and what did not. Oct 2, 2026 6 min read

Claude Code for .NET Developers · Part 3

Claude Code Hooks for .NET: Format, Build and Test Without Being Asked

Three Claude Code hooks for a .NET repository, tested on Windows. Format on edit, block hand-edited migrations, test on stop, and what they cost. Oct 2, 2026 6 min read

Claude Code for .NET Developers · Part 4

Claude Code Skills for .NET: Package the EF Core Migration Chore

A Claude Code skill for EF Core migrations, tested seven times. What it changed, what it did not, and a rename EF Core 10 got right by itself. Oct 2, 2026 7 min read

Claude Code for .NET Developers · Part 5

Claude Code Subagents for .NET: A Second Pair of Eyes That Checks the Work

A read-only reviewer subagent for .NET, tested on planted bugs. Five reviews compared, plus real numbers from five agents writing twenty posts. Oct 2, 2026 7 min read

Claude Code for .NET Developers · Part 6

Give Claude Code Your Database Schema: A Read-Only MCP Server in C#

Build a read-only MCP server in C# for Claude Code. Three tools over PostgreSQL, a role that can only read, and a DELETE refused three ways. Oct 2, 2026 6 min read

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